My Christmas gift from my better-half were the AirPods Pro. There do appear to be some inherent problems. Mine are still using 2B588 firmware and haven't been updated, yet I have problems. On receipt I could not get a seal on right ear but swapping to the large tips managed to get a good seal. After a week or so I realised the bass tones seemed week and I could hear outside sounds. Using the Ear tip fit test the right AirPod wouldn't seal. Now after three weeks the left AirPod doesn't seal. If I push the AirPods in tight whilst testing I can sometimes get a good seal. My beliief is that the seals are at fault and possibly nothing to do with firmware. My latest problem was yesterday evening the volume was louder in the left AirPod and if I turned the sound off I could hear a strange high pitched sizzling noise in the left AirPod. Resetting the AirPods cured both problems. This is the second reset in three weeks.......! My original AirPods, now two years old have not had a single issue. Not happy with AirPods Pro.